Here is described and illustrated the armour, weapons, fortifications and ships of one of the least-known phases of the Medieval Crusades, the expeditions by Scandinavian Catholics against the pagan peoples to the east of the Baltic Sea, and their subsequent clashes with the Eastern Orthodox Russian Princes of Novgorod and Muscovy. From isolated castles built in this bleak wilderness of forests, lakes and bogs, the small garrisons struggled equally against the enemy and the harsh terrain and climate. The text is illustrated with photographs of rare museum relics and of castles, and spirited colour plates. Text by David Lindholm and David Nicolle with illustrations by Angus McBride.